Home / 7,328.52-10,112.28-4,455.78

Finding the Fourth Proportional to 7,328.52, 10,112.28 and 4,455.78

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Solution

The fourth proportional to 7,328.52, 10,112.28 and 4,455.78 is: 6,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.52 : 10,112.28 = 4,455.78 : x
  2. Step 2: Convert to fraction form
    7,328.52/10,112.28 = 4,455.78/x
  3. Step 3: Cross multiply
    7,328.52x = 10,112.28 × 4,455.78
  4. Step 4: Simplify right side
    7,328.52x = 45,058,094.98
  5. Step 5: Solve for x
    x = 45,058,094.98/7,328.52
  6. Step 6: Final answer
    x = 6,148.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.